Method of making foamed, opacifying elements
US-2016354804-A1 · Dec 8, 2016 · US
Method of producing hollow particulate material
US10066074B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10066074-B2 |
| Application number | US-201614993247-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 12, 2016 |
| Priority date | Jan 20, 2015 |
| Publication date | Sep 4, 2018 |
| Grant date | Sep 4, 2018 |
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Abstract
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A method of producing, in a liquid, a hollow particulate material having a cavity therein, the method including: (A) blowing gas into a resin solution containing a first dispersion medium; (B) pouring the resin solution to which the gas is blown in step (A) into a second dispersion medium to form liquid droplets encapsulating the gas and prepare a dispersion of the liquid droplets; and (C) solidifying the liquid droplets formed in step (B) and isolating the solidified liquid droplets from the second dispersion medium.
First claim
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What is claimed is: 1. A method of producing, in a liquid, a hollow particulate material having a cavity therein, the method comprising: (A) forming gas bubbles in a resin solution containing a resin, a first dispersion medium, and a lipophilic surfactant by blowing gas into the resin solution with a bubbler; (B) pouring the resin solution having the gas bubbles into a second dispersion medium to form liquid droplets of the resin and the first dispersion medium encapsulating the gas bubbles and prepare a dispersion of the liquid droplets; and (C) solidifying the liquid droplets formed in step (B) and isolating the solidified liquid droplets from the second dispersion medium to produce a hollow particle material having a cavity therein. 2. The method according to claim 1 , wherein the first dispersion medium includes an organic solvent or a polymerizable monomer. 3. The method according to claim 1 , wherein the second dispersion medium includes an aqueous solvent. 4. The method according to claim 1 , wherein the dispersion of the liquid droplets contains an aqueous surfactant. 5. The method according to claim 1 , wherein the resin solution has a viscosity of 10 mPa·s or more at 25° C. 6. The method according to claim 1 , wherein the liquid droplets are solidified through removal of the first dispersion medium. 7. The method according to claim 1 , wherein the liquid droplets are solidified through polymerization of the liquid droplets. 8. The method according to claim 1 further comprising, between steps (B) and (C), a step of dividing the liquid droplets encapsulating the gas. 9. The method according to claim 1 , wherein the gas in the step (A) is air or inert gas.
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- What does patent US10066074B2 cover?
- A method of producing, in a liquid, a hollow particulate material having a cavity therein, the method including: (A) blowing gas into a resin solution containing a first dispersion medium; (B) pouring the resin solution to which the gas is blown in step (A) into a second dispersion medium to form liquid droplets encapsulating the gas and prepare a dispersion of the liquid droplets; and (C) soli…
- Who is the assignee on this patent?
- Konica Minolta Inc
- What technology area does this patent fall under?
- Primary CPC classification C08J9/30. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 04 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).